![]() ![]() There is a Java source file, Main.java that is used as the driver program. There is basically one Java file that implements the interface to the native C++ code and one C++ file that implementsĪll of the examples. They are simple enough to be understood merely by looking at the code, yet each are instructive and focused on illustratingĪ point. I dreamed up examples that I thought would be instructive in understanding howĬertain things are done in the Java/native interaction. With the exception of maybe one or two examples, the sample code is my own. It access the components? Let me see, oh yeah, here it is, example #5" I want to say later, "Hmmm, now how did I pass an object array to C++ and have Of a callback), and I can understand it right away. Show me an example of a callback on a static void method, (instead of specification explaining every single variation ![]() I am a trueīeliever that a picture is worth a thousand words. In fact, it would probably be of less help. I don't just want to reprint what Microsoft and Sun say in their documentation. It may be useful to "hand-code" nativeĪlthough JNI documentation is available from Microsoft and Sun, I wanted to create a document/example that contains all of the important aspects of native code interfacing Given that Java is interpreted (more or less), one would assume that compiled native code would perform much better. To incorporate its functionality into a Java program, rather than to port (re-implement) the C++ functionality in Java. Given large amounts of proven C++ code, it may be more cost-effective ![]() However, the benefits of using JavaĪt this level do not outweigh the overwhelming task of re-implementing currently tested and debugged C++ code. It may be argued that (superficially) Java is a better C++ (maybe in the way that C++ is a better C). There are basically two reasons why I chose to explore the Java Native Interface (JNI): Code Reusability and Performance. Using the Java Native Interface with C++ Using the Java Native Interface with C++ ![]()
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